Soil Moisture Estimator - Revision history

Agrineer: /* 6 images: ETo 3.3km, 10km, 30km; Precipitation 3.3km, 10km, 30km */

2019-01-28T02:14:45Z

6 images: ETo 3.3km, 10km, 30km; Precipitation 3.3km, 10km, 30km

← Older revision		Revision as of 19:14, 27 January 2019
Line 177:		Line 177:

	=== Output section ===		=== Output section ===
	==== 6 images: ETo ~~3.3km, 10km, 30km;~~ Precipitation ~~3.3km, 10km, 30km~~ ====		==== 6 images: ETo and Precipitation ====
	<pre style="color:rgb(204,112,0)"> yellow #10 in the above image</pre><br />		<pre style="color:rgb(204,112,0)"> yellow #10 in the above image</pre><br />
	There are 2 image display areas. The left one is for ETo (evapotranspiration) data, the right one for Precipitation data. Both have 3 tabs for a total of 6 available images. All 6 images are 171 x 171 pixels in size but the resolution of each pixel varies in each of the tabs.		There are 2 image display areas. The left one is for ETo (evapotranspiration) data, the right one for Precipitation data. Both have 3 tabs for a total of 6 available images. All 6 images are 171 x 171 pixels in size but the resolution of each pixel varies in each of the tabs.

Agrineer: /* How to run */

2019-01-19T02:19:27Z

How to run

← Older revision		Revision as of 19:19, 18 January 2019
Line 75:		Line 75:
	== How to run ==		== How to run ==

	For an estimate of soil water content at different soil levels users can specify the location, run dates, crop, and soil types, in addition to local rain and irrigation events. Currently, with the SMA module there are just two, corresponding to the "A" (topsoil) and "B" (subsoil) horizons.		For an estimate of soil water content at different soil levels users can specify the location, run dates, crop, and soil types, in addition to local rain and irrigation events. Currently, with the SMA module there are just two soil levels, corresponding to the "A" (topsoil) and "B" (subsoil) horizons.

	== SME application with numbered sections ==		== SME application with numbered sections ==

Agrineer: /* How to run */

2019-01-19T02:18:42Z

How to run

← Older revision		Revision as of 19:18, 18 January 2019
Line 75:		Line 75:
	== How to run ==		== How to run ==

	~~Users~~ can specify the location, run dates, crop, and soil types, in addition to local rain and irrigation events~~, for an estimate of soil water content at different soil levels~~. Currently, with the SMA module there are just two, corresponding to the "A" (topsoil) and "B" (subsoil) horizons.		For an estimate of soil water content at different soil levels users can specify the location, run dates, crop, and soil types, in addition to local rain and irrigation events. Currently, with the SMA module there are just two, corresponding to the "A" (topsoil) and "B" (subsoil) horizons.

	== SME application with numbered sections ==		== SME application with numbered sections ==

Agrineer: /* Backend Soil Moisture Models */

2019-01-19T02:15:02Z

Backend Soil Moisture Models

← Older revision		Revision as of 19:15, 18 January 2019
Line 71:		Line 71:
	=== Backend Soil Moisture Models ===		=== Backend Soil Moisture Models ===

	The [[Sacramento SMA \| Soil Moisture Accounting]] (SMA) model is currently implemented in this release and delivers moisture content estimates in the soil at two levels (horizons A and B). It is part of the SME package,available [https://gitlab.com/agrineer/sme here]		The [[Sacramento SMA \| Soil Moisture Accounting]] (SMA) model is currently implemented in this release and delivers moisture content estimates in the soil at two levels (horizons A and B). It is part of the SME package, available [https://gitlab.com/agrineer/sme here]

	== How to run ==		== How to run ==

Agrineer: /* ETc FAO Implemention */

2019-01-19T02:07:54Z

ETc FAO Implemention

← Older revision		Revision as of 19:07, 18 January 2019
Line 65:		Line 65:
	Crop coefficients can be described as a curve over time or, in the case of the FAO guidelines, as discrete values over stages of the growing season. Following FAO, we use four stages of coefficients: initial, development, middle, and late with associated day intervals. A complete description of crop input file is given below.		Crop coefficients can be described as a curve over time or, in the case of the FAO guidelines, as discrete values over stages of the growing season. Following FAO, we use four stages of coefficients: initial, development, middle, and late with associated day intervals. A complete description of crop input file is given below.

	Deriving the correct coefficients is key to accurate estimates, and this is difficult as a myriad of variables are at play, eg. soil physics, micro-climates, cultivars, spacing, etc. As above, our intent is to create a platform which can be used to converge on working coefficients for local conditions. However, this requires ground sensor data for comparison purposes and so community participation is necessary for local adjustments.		Deriving the correct coefficients is key to accurate estimates, and this is a difficult task as a myriad of variables are at play, eg. soil physics, micro-climates, cultivars, spacing, etc. As above, our intent is to create a platform which can be used to converge on working coefficients for local conditions. However, this requires ground sensor data for comparison purposes and so community participation is necessary for local adjustments.

	With community participation we hope to compile working coefficients for local areas. An excellent resource for crop coefficients is in the FAO paper referenced above and can serve as starting point for local implementation.		With community participation we hope to compile working coefficients for local areas. An excellent resource for crop coefficients is in the FAO paper referenced above and can serve as starting point for local implementation.

Agrineer: /* ETc FAO Implemention */

2019-01-19T02:06:47Z

ETc FAO Implemention

← Older revision		Revision as of 19:06, 18 January 2019
Line 65:		Line 65:
	Crop coefficients can be described as a curve over time or, in the case of the FAO guidelines, as discrete values over stages of the growing season. Following FAO, we use four stages of coefficients: initial, development, middle, and late with associated day intervals. A complete description of crop input file is given below.		Crop coefficients can be described as a curve over time or, in the case of the FAO guidelines, as discrete values over stages of the growing season. Following FAO, we use four stages of coefficients: initial, development, middle, and late with associated day intervals. A complete description of crop input file is given below.

	Deriving the correct coefficients is key to accurate estimates, and this is difficult as a myriad of variables are at play, eg. soil physics, micro-climates, cultivars, spacing, etc. As above, our intent is to create a platform which can be used to converge on working coefficients for local conditions. However, this requires ground sensor data for comparison purposes and so community participation is necessary.		Deriving the correct coefficients is key to accurate estimates, and this is difficult as a myriad of variables are at play, eg. soil physics, micro-climates, cultivars, spacing, etc. As above, our intent is to create a platform which can be used to converge on working coefficients for local conditions. However, this requires ground sensor data for comparison purposes and so community participation is necessary for local adjustments.

	With community participation we hope to compile working coefficients for local areas. An excellent resource for crop coefficients is in the FAO paper referenced above and can serve as starting point for local implementation.		With community participation we hope to compile working coefficients for local areas. An excellent resource for crop coefficients is in the FAO paper referenced above and can serve as starting point for local implementation.

Agrineer: /* ETc FAO Implemention */

2019-01-19T02:05:00Z

ETc FAO Implemention

← Older revision		Revision as of 19:05, 18 January 2019
Line 42:		Line 42:
	=== ETc FAO Implemention ===		=== ETc FAO Implemention ===

	We implement the FAO guidelines in calculating ETc. An introductory chapter can be found [http://www.fao.org/docrep/X0490E/x0490e0a.htm#TopOfPage here] and followed by a more in-depth chapter [http://www.fao.org/docrep/X0490E/x0490e0b.htm#TopOfPage here]. ~~We use the~~ single crop model.		We implement the FAO guidelines in calculating ETc. An introductory chapter can be found [http://www.fao.org/docrep/X0490E/x0490e0a.htm#TopOfPage here] and followed by a more in-depth chapter [http://www.fao.org/docrep/X0490E/x0490e0b.htm#TopOfPage here]. The single crop model is currently employed.

	The procedure is straight forward, a (crop) coefficient is applied to the ETo value, accumulated hourly throughout the day, for the growing season:		The procedure is straight forward, a (crop) coefficient is applied to the ETo value, accumulated hourly throughout the day, for the growing season:
Line 65:		Line 65:
	Crop coefficients can be described as a curve over time or, in the case of the FAO guidelines, as discrete values over stages of the growing season. Following FAO, we use four stages of coefficients: initial, development, middle, and late with associated day intervals. A complete description of crop input file is given below.		Crop coefficients can be described as a curve over time or, in the case of the FAO guidelines, as discrete values over stages of the growing season. Following FAO, we use four stages of coefficients: initial, development, middle, and late with associated day intervals. A complete description of crop input file is given below.

	Deriving the correct coefficients is key to accurate estimates, and this is difficult as a myriad of variables are at play, eg. soil physics, micro-climates, cultivars, spacing, etc. As above, our intent is to create a platform which can be used to converge on working coefficients for local conditions. ~~This~~ requires ground sensor data for comparison purposes.		Deriving the correct coefficients is key to accurate estimates, and this is difficult as a myriad of variables are at play, eg. soil physics, micro-climates, cultivars, spacing, etc. As above, our intent is to create a platform which can be used to converge on working coefficients for local conditions. However, this requires ground sensor data for comparison purposes and so community participation is necessary.

	With community participation we hope to compile working coefficients for local areas. An excellent resource for crop coefficients is in the FAO paper referenced above and can serve as starting point for local implementation.		With community participation we hope to compile working coefficients for local areas. An excellent resource for crop coefficients is in the FAO paper referenced above and can serve as starting point for local implementation.

Agrineer: /* ETc FAO Implemention */

2019-01-19T01:59:30Z

ETc FAO Implemention

← Older revision		Revision as of 18:59, 18 January 2019
Line 67:		Line 67:
	Deriving the correct coefficients is key to accurate estimates, and this is difficult as a myriad of variables are at play, eg. soil physics, micro-climates, cultivars, spacing, etc. As above, our intent is to create a platform which can be used to converge on working coefficients for local conditions. This requires ground sensor data for comparison purposes.		Deriving the correct coefficients is key to accurate estimates, and this is difficult as a myriad of variables are at play, eg. soil physics, micro-climates, cultivars, spacing, etc. As above, our intent is to create a platform which can be used to converge on working coefficients for local conditions. This requires ground sensor data for comparison purposes.

	With community participation we hope to compile working coefficients for local areas.		With community participation we hope to compile working coefficients for local areas. An excellent resource for crop coefficients is in the FAO paper referenced above and can serve as starting point for local implementation.

	=== Backend Soil Moisture Models ===		=== Backend Soil Moisture Models ===

Agrineer: /* ETc FAO Implemention */

2019-01-19T01:55:46Z

ETc FAO Implemention

← Older revision		Revision as of 18:55, 18 January 2019
Line 44:		Line 44:
	We implement the FAO guidelines in calculating ETc. An introductory chapter can be found [http://www.fao.org/docrep/X0490E/x0490e0a.htm#TopOfPage here] and followed by a more in-depth chapter [http://www.fao.org/docrep/X0490E/x0490e0b.htm#TopOfPage here]. We use the single crop model.		We implement the FAO guidelines in calculating ETc. An introductory chapter can be found [http://www.fao.org/docrep/X0490E/x0490e0a.htm#TopOfPage here] and followed by a more in-depth chapter [http://www.fao.org/docrep/X0490E/x0490e0b.htm#TopOfPage here]. We use the single crop model.

	The procedure is straight forward, a (crop) coefficient is applied to the ETo value, accumulated throughout the day, for the growing season:		The procedure is straight forward, a (crop) coefficient is applied to the ETo value, accumulated hourly throughout the day, for the growing season:

	<math>ET_c=K_{ci}*ET_o</math>		<math>ET_c=K_{ci}*ET_o</math>

Agrineer: /* ETc FAO Implemention */

2019-01-19T01:54:46Z

ETc FAO Implemention

← Older revision		Revision as of 18:54, 18 January 2019
Line 53:		Line 53:
	\|-		\|-
	\|<math>ET_c</math>		\|<math>ET_c</math>
	\|crop evapotranspiration <math>[mm~hour^{-1}]</math>,		\|is the crop evapotranspiration <math>[mm~hour^{-1}]</math>,
	\|-		\|-
	\|<math>K_{ci}</math>		\|<math>K_{ci}</math>
	\|crop coefficient at some time i,		\|is the crop coefficient at some time i,
	\|-		\|-
	\|<math>ET_o</math>		\|<math>ET_o</math>
	\|reference evapotranspiration <math>[mm~hour^{-1}]</math>,		\|is the reference evapotranspiration <math>[mm~hour^{-1}]</math>.

	\|}		\|}